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FDA Vaccine Chief Resigns, Citing RFK Jr.'s Vaccine Misinformation

Peter Marks' resignation raises concerns over public health, regulatory stability, and the biotech sector under the Trump administration.

A top FDA regulator resigned Friday, citing Robert F. Kennedy's persistent spread of vaccine misinformation.
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Dr. Peter Marks, Director of the Center for Biologics Evaluation and Research within the Food and Drug Administration gives an opening statement during a Senate Health, Education, Labor and Pensions Committee hearing to discuss the on-going federal response to COVID-19, at the U.S. Capitol in Washington, D.C., U.S., May 11, 2021. Greg Nash/Pool via REUTERS
Director Center for Biologics Evaluation and Research, at the US Food and Drug Administration, Peter Marks, testifies during a Senate Health, Education, Labor and Pensions Committee hearing on the federal coronavirus response on Capitol Hill in Washington, DC, March 18, 2021. (Photo by Susan Walsh / POOL / AFP) (Photo by SUSAN WALSH/POOL/AFP via Getty Images)

Overview

  • Peter Marks, the FDA's top vaccine regulator, resigned effective April 5, citing fundamental disagreements with HHS Secretary Robert F. Kennedy Jr.'s vaccine skepticism and misinformation.
  • Marks' departure has triggered significant declines in biotech and vaccine stock prices, with companies like Moderna and Novavax experiencing double-digit losses.
  • In his resignation letter, Marks criticized the erosion of scientific standards and the undermining of public confidence in vaccines, warning of serious risks to public health.
  • The resignation is part of broader restructuring at HHS under Kennedy, including 3,500 job cuts at the FDA, fueling concerns about regulatory instability and slowed drug approvals.
  • Public health experts and industry leaders have expressed alarm, viewing Marks' exit as a major loss for scientific leadership and innovation at the FDA.